Multifunctional animal brain injury instrument

Abstract

This utility model discloses a multifunctional animal craniocerebral injury device, including a bottom support plate, an L-shaped support plate welded to the bottom support plate, a force-applying mechanism slidably connected to the L-shaped support plate, and a striking pin installed below the force-applying mechanism; it also includes a lifting and releasing mechanism, which can raise and release the force-applying mechanism to allow it to fall freely. This relates to the technical field of craniocerebral injury devices. By setting up the lifting and releasing mechanism, when the force-applying mechanism is raised, the electric push rod retracts and drives the support rod to rotate, causing the rolling wheel to disengage from the second support ring, thus allowing the force-applying mechanism to descend under the action of gravity, improving ease of use; by setting a spring at the top of the striking rod, when the force-applying mechanism is raised, the spring is compressed, and the spring force drives the force-applying mechanism to descend, thus allowing the striking pin to obtain greater kinetic energy without the striking rod needing to be raised very high.

Description

Technical Field

[0001] This utility model relates to the field of craniocerebral injury instruments, specifically a multifunctional animal craniocerebral injury instrument. Background Technology

[0002] Animal craniocerebral injury devices, especially free-fall brain injury model impact devices, operate on the principle of free fall. The device mainly consists of an impact pin, a falling impact rod, a metal cannula, and a brain locator. During the experiment, researchers first anesthetize the experimental animals to reduce their suffering and ensure the experiment proceeds smoothly. Then, the anesthetized animals are secured to the brain locator, and by adjusting components such as the mouse adapter and ear rods, the animal's head is ensured to be in the predetermined impact position. Depending on the experimental requirements, researchers adjust the weight and the height of the fall to accurately control the impact force. When the release mechanism is activated, the weight falls freely along the guide rail, and the impact pin strikes the animal's head at a set speed and force, simulating brain injury.

[0003] Existing animal craniocerebral injury devices require manual raising of the striking rod during use, which is inconvenient. Furthermore, since they rely on gravitational potential energy to drive the striking pin downwards, the striking rod not only needs to be relatively heavy but also needs to be raised very high, making the device heavy and further complicating its use. Utility Model Content

[0004] In view of the problems existing in the current multifunctional animal craniocerebral injury device, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a multifunctional animal craniocerebral injury device, which solves the problem that existing animal craniocerebral injury devices require manual raising of the striking rod during use, which is inconvenient; and because they rely on gravitational potential energy to drive the striking pin to descend, the striking rod not only needs to be set to be heavy, but also needs to be raised very high, making the device heavy and further causing inconvenience in use.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A multifunctional animal craniocerebral injury device includes a bottom support plate, an L-shaped support plate welded to the bottom support plate, a force application mechanism slidably connected to the L-shaped support plate, and a striking pin installed below the force application mechanism. It also includes a lifting and releasing mechanism, which can lift and release the force-applying mechanism, allowing it to fall freely.

[0007] As a preferred embodiment of the multifunctional animal craniocerebral injury device of this utility model, an animal fixation mechanism is fixedly installed on the bottom support plate; The animal restraint mechanism includes a lower clamp welded to a bottom support plate, an upper clamp above the lower clamp, and a guide structure between the upper clamp and the lower clamp.

[0008] In a preferred embodiment of the multifunctional animal craniocerebral injury device of this utility model, a first support block is welded to the lower clamp, a second support block is welded to the upper clamp, a guide rod is welded to the bottom of the second support block, and the guide rod passes through a through hole on the first support block.

[0009] In a preferred embodiment of the multifunctional animal craniocerebral injury device described in this utility model, a stabilizing plate is welded onto the L-shaped support plate, and a through hole is provided on the stabilizing plate for the impact pin to pass through, and the stabilizing plate and the impact pin are slidably connected.

[0010] In a preferred embodiment of the multifunctional animal craniocerebral injury device of this utility model, the lifting and releasing mechanism includes a support plate, a support rod is hinged to the top of the support plate by a pin, a rolling wheel is hinged to the top of the support rod by a pin, a second electric push rod is hinged between the support rod and the support plate, a first electric push rod is installed at the bottom of the support plate, a base plate is connected to the bottom of the first electric push rod, and the base plate is welded to an L-shaped support plate.

[0011] In a preferred embodiment of the multifunctional animal craniocerebral injury device of this utility model, a first support connecting seat is welded to the bottom of the support plate, and the first support connecting seat and the first electric push rod are fixed together by bolts; a second support connecting seat is welded to the base plate, and the second support connecting seat and the first electric push rod are fixed together by bolts.

[0012] In a preferred embodiment of the multifunctional animal craniocerebral injury device of this utility model, the force application mechanism includes a striking rod that passes through an L-shaped support plate and is fitted with a first support ring and a second support ring. A counterweight ring is fitted on the L-shaped support plate.

[0013] In a preferred embodiment of the multifunctional animal craniocerebral injury device of this utility model, the force application mechanism includes a support base welded to an L-shaped support plate, a spring installed at the bottom of the support base, and a second support ring connected to the bottom of the spring.

[0014] Compared with existing technologies: By setting up a lifting and releasing mechanism, when the force-applying mechanism is raised, the electric push rod retracts and drives the support rod to rotate, causing the rolling wheel to disengage from the second support ring. As a result, the force-applying mechanism descends under the action of gravity, improving ease of use.

[0015] By placing a spring at the top of the baton, when the force-applying mechanism is raised, the spring is compressed, and the spring force drives the force-applying mechanism to descend, thus enabling the firing pin to obtain greater kinetic energy without the baton needing to be raised very high. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model; Figure 2 Provided for Embodiment 1 of this utility model Figure 1 Enlarged view of point A in the middle; Figure 3 An exploded view of the animal restraint mechanism provided in Embodiment 1 of this utility model; Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0017] In the diagram: bottom support plate 1, L-shaped support plate 2, lower clamp 3, first support block 31, upper clamp 4, second support block 41, first pull ring 42, striking pin 5, stabilizing plate 6, second support ring 7, first electric push rod 8, base plate 9, guide rod 10, striking rod 11, rubber ring 12, first support ring 13, counterweight ring 14, second pull ring 15, support rod 16, rolling wheel 17, second electric push rod 18, first support connecting seat 19, second support connecting seat 20, support seat 21, spring 22, support plate 23. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Example

[0019] This utility model provides a multifunctional animal craniocerebral injury device. Please refer to [link / reference]. Figure 1-3 It includes a bottom support plate 1, an L-shaped support plate 2 welded on the bottom support plate 1, a force application mechanism slidably connected on the L-shaped support plate 2, and a striker 5 installed below the force application mechanism; It also includes a lifting and releasing mechanism, which can lift and release the force-applying mechanism, allowing it to fall freely.

[0020] An animal restraint mechanism is fixedly installed on the bottom support plate 1. The animal restraint mechanism includes a lower clamp 3 welded to the bottom support plate 1, an upper clamp 4 above the lower clamp 3, a first pull ring 42 welded to the top of the upper clamp 4, and a guide structure between the upper clamp 4 and the lower clamp 3. The upper clamp 4 is heavy enough to place the animal's neck in the gap between the upper clamp 4 and the lower clamp 3, and the animal can be stabilized under the heavy pressure of the upper clamp 4.

[0021] A first support block 31 is welded to the lower clamp 3, and a second support block 41 is welded to the upper clamp 4. A guide rod 10 is welded to the bottom of the second support block 41, and the guide rod 10 passes through the through hole on the first support block 31.

[0022] A stabilizing plate 6 is welded onto the L-shaped support plate 2. The stabilizing plate 6 has a through hole for the impact pin 5 to pass through, and the stabilizing plate 6 and the impact pin 5 are slidably connected.

[0023] The lifting and releasing mechanism includes a support plate 23. A support rod 16 is hinged to the top of the support plate 23 via a pin. A roller 17 is hinged to the top of the support rod 16 via a pin. A second electric push rod 18 is hinged between the support rod 16 and the support plate 23. A first electric push rod 8 is installed at the bottom of the support plate 23. Specifically, a first support connecting seat 19 is welded to the bottom of the support plate 23. The first electric push rod 8 is inserted into the inner wall of the first support connecting seat 19 and fixed to the first electric push rod 8 with bolts. A base plate 9 is connected to the bottom of the first electric push rod 8. Specifically, a second support connecting seat 20 is welded to the base plate 9. The first electric push rod 8 is inserted into the inner wall of the second support connecting seat 20 and fixed to the first electric push rod 8 with bolts. The base plate 9 is welded to an L-shaped support plate 2.

[0024] The force-applying mechanism includes a striking rod 11, with a second pull ring 15 welded to the top of the striking rod 11. Holding the second pull ring 15 facilitates driving the force-applying mechanism to rise. The striking rod 11 passes through a through hole on the L-shaped support plate 2, and the striking rod 11 and the L-shaped support plate 2 are slidably connected. A rubber ring 12 is adhered to the L-shaped support plate 2, and the striking rod 11 passes through the rubber ring 12. Thus, during the descent of the striking rod 11, the first support ring 13 impacts the rubber ring 12, thereby reducing noise. The striking rod 11 is fitted with a first support ring 13 and a second support ring 7, and the L-shaped support plate 2 is fitted with a counterweight ring 14.

[0025] In practical use, such as Figure 1 As shown, the first electric push rod 8 extends, driving the second support ring 7 to rise, thereby raising the force application mechanism and the striking pin 5. Holding the first pull ring 42, the upper clamp 4 is lifted, and the animal's neck is placed in the notch of the lower clamp 3. The upper clamp 4 is then lowered, and the upper clamp 4 and the lower clamp 3 cooperate to clamp the animal's neck. The second electric push rod 18 retracts, driving the support rod 16 to rotate, causing the rolling wheel 17 to disengage from the second support ring 7. As a result, the force application mechanism descends under the action of gravity, using the striking pin 5 to strike the animal's head. Example

[0026] See attached document Figure 4Unlike Embodiment 1, the force-applying mechanism includes a support base 21 welded to an L-shaped support plate 2. A spring 22 is installed at the bottom of the support base 21, and the bottom of the spring 22 is connected to a second support ring 7. When the force-applying mechanism is raised, the spring 22 is compressed. Thus, when the force-applying mechanism is lowered, the elastic force of the spring 22 drives the striker 5 to fall, so that the striker 5 can obtain greater kinetic energy without raising the striker 11 very high.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multifunctional animal craniocerebral injury instrument, comprising a bottom support plate (1), an L-shaped support plate (2) is welded on the bottom support plate (1), characterized in that: A force-applying mechanism is slidably connected to the L-shaped support plate (2), and a striker (5) is installed below the force-applying mechanism. It also includes a lifting and releasing mechanism, which can lift and release the force-applying mechanism, allowing it to fall freely. The lifting and releasing mechanism includes a support plate (23), the top of the support plate (23) is hinged to a support rod (16) by a pin, the top of the support rod (16) is hinged to a rolling wheel (17) by a pin, the support rod (16) and the support plate (23) are hinged together by a second electric push rod (18), the bottom of the support plate (23) is equipped with a first electric push rod (8), the bottom of the first electric push rod (8) is connected to a base plate (9), and the base plate (9) is welded to an L-shaped support plate (2); The bottom of the support plate (23) is welded with a first support connecting seat (19), and the first support connecting seat (19) and the first electric push rod (8) are fixed together by bolts; the bottom plate (9) is welded with a second support connecting seat (20), and the second support connecting seat (20) and the first electric push rod (8) are fixed together by bolts; The force-applying mechanism includes a striking rod (11), which passes through an L-shaped support plate (2), and a first support ring (13) and a second support ring (7) are fitted on the striking rod (11), and a counterweight ring (14) is fitted on the L-shaped support plate (2).

2. The multifunctional animal brain injury instrument according to claim 1, characterized in that, An animal restraint mechanism is fixedly installed on the bottom support plate (1); The animal restraint mechanism includes a lower clamp (3) welded to a bottom support plate (1), an upper clamp (4) above the lower clamp (3), and a guide structure between the upper clamp (4) and the lower clamp (3).

3. The multifunctional animal brain injury instrument according to claim 2, characterized in that, A first support block (31) is welded onto the lower clamp (3), and a second support block (41) is welded onto the upper clamp (4). A guide rod (10) is welded to the bottom of the second support block (41), and the guide rod (10) passes through the through hole on the first support block (31).

4. The multi-functional animal brain injury apparatus according to claim 2, characterized in that, A stabilizing plate (6) is welded onto the L-shaped support plate (2). The stabilizing plate (6) has a through hole for the impact pin (5) to pass through, and the stabilizing plate (6) and the impact pin (5) are slidably connected.

5. The multi-functional animal brain injury apparatus according to claim 1, characterized in that, The force-applying mechanism includes a support seat (21) welded to an L-shaped support plate (2), and a spring (22) is installed at the bottom of the support seat (21). The bottom of the spring (22) is connected to a second support ring (7).

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